- Oxygen, Lambda Sensor
- Exhaust Oxygen Sensor (O2 Sensor)
- Measures oxygen in the exhaust so the ECU can correct the air-fuel mixture
- FAE "77326" - Not available
BMW - 3 (E46, WB), 5 (E39, WB), 7 (E65, WB), 6, X5; ALPINA - B7, Roadster V8; AUDI - A6, A4